Superheater.



1S. M. VAUCLAIN.

SUPERHEATER. APPLIGATION FILED DB0.A20, 1907.

Patented May 1s, 1909.

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APPLICATION FILED 1320.20, 1907.

Patented May 18, 1909.

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s. M. VAUCLAIN.

SUPERHBATER.

APPLICATION TILED 1530.20, 1907.

@2993@60 Patented May 1&3909.

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" nir STATES II FFIQE.

SAMUEL M. VAUGLIN, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO` BURNIIAM,WILLIAMS & COMPANY, F PHILADELPHIA, PENNSYLVANIA, A FIRM'.

SUPERHEATEB.

Specification of Letters Patent.

Patented May 18, 1909*.

Application filed December 20, 1907. Serial No. 407,316.

To o!! l'whom 'it may concern:

Be it known that I, SAMUEL M. VAuoLAln, a citizen oi' the United States,residing in Philadelphia Pennsylvania, have invented certainImprovements in Suierheaters, ol which the following is a speci'ic-ation.

My invention relates to certain improvements in locomotive boilers inwhich the supcrh'eatcr is located in the smoke box, and

y which is connected to the boiler and to the cylinders ol' thelocomotive.

'lhe object ol my invention is to so com struct a superheater that thesteam will en ter the endof the superheater farthest from the boiler,and will be discharged from the superheater at a point near the boiler.

In the accompanying drawings: Figure 1,r is a longitudinal sectionalview on the line l-l, Fig. 2; of my improved superheater; Fig. 2, is atransverse scr-.tional view on the line 2 2, Fig. 1, the nozzle being inelevation; Fig. 3, is a plan View of the top plate of the superhea'ter;Fig. 4, is a longitudinal section on'. the line 4 4, Fig. 2; Figs. 5 and6, are

views of modifications ol my in yention g andv Fig. 7, is a view of thedeflecting plate.

A is the locomotivelboiler having tubes a, which are secured to a tubesheet a in the `ordinary manner.

A is the smoke box casing inclosing the vsup-,rheater made in two partsB, B', as shown clearly in Fig. 2. Within the smoke b'ox is the nozzlec, the hood c', and the stack C, of the usual construction.

The superheater in the present instance is made in two sections, asshown, each section havingI an upper header I), a lower header D', andconnecting tubes d. These tubes are bent so v4as to conform to the shapeof thc shell of the superheater as near as possible. This constructionenables me to place the superheaters in each side of the smoke box,leaving the central portion clear and unobstructed, so that access maybe had to the interior of the smoke box.

The header D consists of a casting d and the tube plate d2. 'llhecasting d in the present instance, ,has a longitudinal partition d3, andtwo transverse partitions (Z4, as shown by dotted li-nes in Fig. 3,which separate the header I) into sections. 'lhe tube plate cl2 isconnected to the casting d, by bolts e. In some instances, the centerline of bolts which pass through thepartition da may be dispensed with.

E is a tubular enlargement forni-ing an integralpart of the casting d",and extends nearly the full length of the header l), as indicated inFigs. 1 and 4. This tubular eXtension 'connects with the forward end olthe header through a passage e, and is coupled at the opposite end to aT-union Fwhic 1 in turn is-coupled to the tube F leading to the steamspace in the boiler.

'lhe lower header D consists in the. present instance of a body portiong, a tube platej" coupled to the castiner by oltsg, and this header hasa series ol? partitions dividing it into sections, and'has a neckfcommunicating with the steam supply lpassage G of the steam cylinder.'Ihepartitions are so arranged as shown in Figs. l and 3, that the'circulation ol' the steam through each superheater section is l'rolnthe boiler, into the p'assage c direct to the forward end ol the headerl), then down the tube 1, returning through the tubes 2, then downthrough tubes 3, returning through the tubes 4, passing down the tubes 5to the outlet end of the su erheater, which is connected through a necif to the passage G, leading to the cylinders.

It will be noticed that the construction of the superheater section B issimilar to the section B, and is coupled in the same manner to the unionF, and to the passage in the cylinder castmg G. y

I,` I are two dellecting plates, one on each side of the center of thesmoke box, and these i dellecting -plates are drawn together at thesupply pipe E formedintegralvwith the castmg of the upper header D,'fbut it will be understood that a pipe, asshown at E, Figs. 5 and G,may be use( if ,lesired,-a pipe E being coupled to nach side of theunion F, and

coupled to the forward end of the super- 4heater, as shown.

I claim: The combination of a superheater adapted l-lO to be mounted inthe smoke box of e loeomol pipe leading from the boiler, substantiallyes 10 tive boiler, consisting of upper and lower described, headers andconnecting tubes, the upper In testimony whereof, I have signed myheader having a tube plete and a recessed name to this specification, inthe presence of casting having integral partitions, and havtwosubscribing Witnesses.

ing a tubular extension communicating at bAMUEL M. VAUCLAIN.

the 'forward end with one of the cavitesl Witnesses: formed by thepartition, and at the other end l J. H. KERST, adapted to be coupled tothe steam supply E. J. ABBOTT.

